Solder for aluminum workpieces



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Patented Dec. 5, 1944 UNITED STATES PATENT OFFICE I zsusoz I somsa roa snumnwmwonxrmcss ms stru -(haul, Switzerland, assignor to dreOla vel, Basel, Switzerland No Drawing. Application 'No. 447,449. In Switzerland October 2, 1941 June 17, 1942, Serial 2 Claims. (01. 75-434) The present invention relates to aluminum work pieces.

Aluminum solders in use subjected to corrosion.

solder for have proved to be contrasting therewith the invention provides an aluminum solder which includes the advantage to be abmlutely non-cor- I! this solder is specially rodible. O

suitable for the soldering of cables, particularly submarine cables.

Accordinsto the invention thesolder consists 0! tin, cadmium and silver. preferably in proportions of to 10 to 20% silver. By way of example, the solder may have the following constitution: 43% tin,

lzfiioadmiumandlo'ksilver.

- 'Ihe Production processor the solder can, for

tln.35to%cadmiumand 0130 tin,

Whensoldering with aluminum solder accord, ing to the invention it'is quite superfluous to use fluxes. welding means or stance stearin, soap, colophony etc., means as they are in use with hitherto known aluminum solders.; i e

What I claim is:

1. Solder for aluminum work pieces consisting pressed together.

20% silver.

2. Solder for aluminum work pieces consisting so 0! 42% in. 42% cadmium and 16% silver.

covering means, for in-.

35to50%cadmiumandl0to- 

